Nortek PPH3RE Series, Руководство по установке

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11
StARtuP & ADjuStMEntS
Pre-Start checklist
The following check list should be observed prior to
starting the unit.
√
Is the unit level? Unit should be level or slightly slanted
toward the drain for proper condensate drainage.
√
Is the unit installed with the proper clearances as listed
on page 5 ?
√
Is the wiring correct according to the wiring diagram
and electrical codes?
√
Are all the wiring connections tight? Check the condenser
fan to make sure it turns freely.
√
Is the overcurrent protection properly sized?
√
Is the thermostat wired correctly? Is it installed in a
proper location?
√
To achieve rated capacity and efficiency the compressor
must be exposed to refrigerant for at least 24 hours prior
to running and then must be run for a minimum of 12
hours.
Start-up Procedure
The control circuit consists of an anti-short cycle timer
that will not let the compressor re-start before 5 minutes
have elapsed.
1. Set the system mode to OFF and the temperature mode
to its highest setting.
2. Turn power on at the disconnect switch.
3. Set the system mode to ON or COOL.
4. Set the temperature mode below room temperature.
Verify that the indoor blower, outdoor fan, and
compressor energize and the cooling function starts.
5. Verify the discharge air grilles are adjusted and the
system air is balanced.
6. Verify the duct work has no air leaks.
7. Verify the condensate drain is installed correctly and
functions properly.
8. Set the temperature mode above room temperature.
The unit should stop.
9. Instruct the homeowner on unit and thermostat operation
and filter servicing.
Air Circulation
Leave the thermostat system mode on OFF, and set the
fan mode to ON. Blower should run continuously. Check
the air delivery at the supply registers and adjust register
openings for balanced air distribution. Examine ducts for
leaks or obstruction if insufficient air is detected.
Set the thermostat fan mode to AUTO. The blower should
stop running.
System Heating
Set the thermostat system mode to HEAT and the fan mode
to AUTO. Change the thermostat temperature selector
above the existing room temperature and check for the
discharge of warm air at the supply registers.
System Cooling
Set the thermostat’s system mode to COOL and the
fan mode to AUTO. Change the thermostat temperature
selector below the existing room temperature. Allow the
cooling system to operate for several minutes and check
for the discharge of cool air at the supply registers.
Short Cycle Protection
The control circuit is equipped with a time-delay feature
for protection against short cycling. With the system
operating in the cooling mode, gradually raise the
thermostat temperature setting until the whole system de-
energizes. Immediately lower the thermostat temperature
to the original setting and verify that the indoor blower is
energized. After approximately 5 minutes the compressor
and the outdoor fan will energize.
Emergency Heat
(Available only when Electric heat is supplied) Set the
thermostat’s system mode to EM HT and the fan mode
to either AUTO (intermittent air) or to ON (continuous air).
Change the thermostat’s temperature selector above the
existing room temperature and check the following:
1. The thermostat auxiliary heat light (RED) should be on.
2. The heat pump compressor and the fan should not run;
low voltage circuit remains energized.
3. The blower will run according to the thermostat’s fan
mode setting.
Anti Short cycle timer test
The 5 minute time delay feature can be bypassed by
shorting the TEST pins together.
Heating Mode
When the TEST pins are shorted together for more than
1 second, the control will switch between defrost mode
and heating mode.
Cooling Mode
When the TEST pins are shorted together for more than
1 second, the Anti Short Cycle Timer will be bypassed.
unIt MAIntEnAncE
WARnIng:
to prevent electrical shock, personal injury, or
death, disconnect all electrical power to the unit
before performing any maintenance or service.
the unit may have more than one electrical supply.
Proper maintenance is important to achieve optimum
performance from the heat pump. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following: